Antifriction-bearing.



UNITED STATES PATENT OFFICE.

HENRY Hnssor wAwA, :enNNsYLvANrA, AssreNon TO THE HESS-BRIGHT MANU- FAGTURING COMPANY, or P ILADELPHIA, PENNSYLVANIA, A CORPORATION or DELAWARE.

AN'rIrnmrroN-BEAnINo.

Specification of Letters Patent.

Patented May 28,1912.

Application filed September 24, 1909. Serial No. 519,315.

ToaZZ whom it may concern:

Be it known that I,-I-IENnY Hnss, a citizen of the United States, residing at Wawa, in the county of Delaware and State of Pennsylvania, have invented certain new and useful Improvements in Antifriction-Bearings,

of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to antiefriction bearings, and more particularly to that type thereof wherein the raceway is continuous and uninterrupted by filling openings and the like. As is well known in the art, various methods of assembling such bearings have been employed. For instance, in the silent type, the parts are sgmetimes assembled and disassembled byl the eccentric displacement-ofthe casing members in accordance with the r'well known Conrad method, and sometimes by the use-of filling.

openings, and in other well-known ways.

In bearings of the full type, various expedients have been also resorted to, such for lnstance as'formlng one or more of the easing members in sections, or by the provision of filling openings, and the like, all of which are undesirable for various reasons.

'It'is one of the pfirposesofmy present invention to provide casing members which are integral and uninterrupted, so far'as their external contour 1s concerned, and I i therefore form a supplemental recess in the interior portion of one or the other of them, that is to, say, in the surface between the two "casing members where the tracks or ways are member may, be readily passed thereover, after which the rolling elements are trans-- ferred from the recess to the raceway and thereby the parts are held.together and locked, so as to constitute what is known in the art as a unit handling bearing, and thus entirely dispensing with the use of the several expedients before mentioned, even though the bearing-in question be of the full or substantially the full type.

In my preferred form I have shown the invention as applied to-a bearing as illustrated and described in an application for Letters Patent of Fred E. Bright, Serial No. 501,531, filed June 11, 1909, wherein I have found that the use of my principle is particularly advantageous. However, I do not confine myself to this type, as it is obviously applicable to anti-friction bearings of other forms; and generally speaking, I do not desire to limit myself to any partlcus lar embodiment or details except in so far as such limitations are specified in thev claims. Referring to the drawings: Flgure 1 1s a transverse sectional view of a two-series bearing of the type referred to, showing my invention applied thereto. Fig. 2 is a similarview indicating more particularly the arrangement of the several parts during assemblage. Fig. 3 is a similar view of a oneseries bearing having my invention applied thereto. Fig. 4 is a similar view illustrating a modified form of two-series bearin with the interior recess 01' groove dup icated therein; and Fig. 5 is a sectional detail view of a modified form, taken substantially on the line 55 in Fig. 1..

Referring firstto Figs. 1 and2, the bearing illustratedis substantially of the kind presented in the Bright application previously referred to, and comprises an outer casing member A, an inner casing member B, with two-series of balls O and D between them. The series of balls G travel upon the I tracks or ways a and b, and the series of balls D travel up-on'the tracks or ways (1 6 it being noted that the tracks or ways a, o of the casing member A are separated by the projecting rib (i and that the tracks or ways 5', b ofvthe casing member B, are formed as grooves, allas described in the said application. In, the Bright case, one. of the casingimembers is formed with a filling opening through which the balls of. one or both of the series are introduced into assembled position. The present invention,v however, employs a diiferent method of assemblage, which proceeds from the formation' of the interior recess. E, which is shown by way of example in thegpasing member B.

,This recess may have any desired configura- "from an inspection of Fig. 2.

for instance that constituted by the tracks or ways a, b, as shown in the drawings The' method of assemblage will be obvious The series of, balls D are placed in the track or way and the series of balls C are tem- %orarily located in the recess or groove after which the casingmember A may be passed thereover and brought into position, by being moved in the direction indicated by the arrow. When the casing members assume their normal relative positions, that is to say, when the series of balls D are properly located in their tracks or ways a, b, the balls 0 may be transferred from the groove or recess E to their tracks.

or ways a, b, which last operation may be performed in any desired manner, as for instance by operatinga tool from the opposite side of the bearing and between the balls of'the series D. It will be seen that the parts will then assume the position shown -in F ig. 1 with the rib a between the series y D outwardly, as. described in the Bright application As shown in Figs. 1 and 2, an additional means is provided to insure the retention of the balls C in assembled position, namely, the junction or line 6 at which the surface of the recess or groove E joins the track or way Z), it being noted assembledposition,

ticity of the material of the parts.

.of the. balls from one to the other, and this is permitted by the deformability and elas- The transferal of the rolling elements from the recess to the raceway may also be accomplished in other ways, as by any expansion of the outer casing member or contraction ofthe inner casing member, or both, as for instance by. the respective applications of" heat'or cold thereto, or both, and in other equivalent ways. Again, the amount of forcing may be reduced or entirely done awa. with (see Fig. 5) by forming a cut or.

note G in the line of junction 6 between the surface of the recess-or groove E and the track or way I), the balls being brought successively into position and then passed through the out or notch G into the raceway.

-Ihe method of disassembling is the reverse of that already described, namely, the balls C are passed onforced into the groove 01' recess E, after which the casing member A maybe withdrawn in the direction opposite to that of the arrow in Fig. 2. As previously stated, I prefer to form the recess E in the form of a circumferential groove, but this is not essential to the practice of my invention, for the reason that a recess or cavity of any shape or size will be adequate,

provided it permits the operation and has the functions previously described. One reason for preferring itin the form of a circumferential groove is that, if for any reason, or due to accident or wear, one or more of the balls of the series be transferred from the raceway to the groove during operation, such displaced ball or balls will travel with the other parts arrmd the circumference'of the casing membe and Without interfering with or preventing the normal operation of the other parts, result which mighteasily occur if the groove were not of the circumferential character described.

To show the applicability of my invention to types other than that above described, I

have selected and illustrated one or two modifications by way of example. In Fig. 3, the bearing illustrated is of the singleseries type and comprises two casing members A and B, formed respectively with the tracks or ways a 6*, wherein the series of balls C are normally located. The inner casing member 13 is here formed with a recess or groove E wherein the balls are located during assemblage as previously described, this being necessitated in the type shown by reason of the fact that the tracks or ways a, 19 are extremely deep, thus bringing the flanges of the casing members A, B, into close proximity. The halls C are therefore temporarily placed in the recess or groove E and after the casing members are brought to normal position, the balls O are transferred from the groove E to the raceway, which operation may be effected in any desired manner, as for instanceby the passage of a tool through the B and communicating with the groove or recess E In Fig. 4 I have illustrated another two-series type, consisting of the casing members A and B between which are. mounted the two series of balls-C and D.

In this instance, I provide one of the casing members with two recesses or grooves F1315,

adjoining and communicating with the reaperture E formed in the casing member transferred from the grooves or recesses E, E, to the raceways in any desired manner, as for instance by passing a tool through theapertures E E formed in the casing ."from the spirit of my invention.

- Having thus described my invention, its

construction'and mode of operation, what I claim and desire to secure'by. Letters Patent of theUnited States is as follows:

1. In an anti-friction bearing, the combination of casing'members and rolling elements located therebetween, the said casing members being formed with'a raceway for .the rolling elements, and also'with an in terior recess of such size and so located as to receive-a plurality of rolling elements atone time and to retain them out of 'efli'ective engagement with the others parts, so that the normal rotational operation of the assembled bearing will not be impeded thereby.

2. In an anti-friction bearing, the combi-v nation of easing members and rolling elements located therebetween,:the said casing members being formed with -.a raceway for .the rolling elements and also withia groove extending entirel around the periphery of the bearing to a 0rd a temporarylodgment for the rolling elements.

3. In an anti-friction bearing, the combi-j nation of easing members and rolling elements located therebetween, the said casing members being formed with a raceway wherein the rolling elements normally travel in assembled position, and also with an interior recess communicatin with the raceway, so that the rollinge ements may be transferred from one to the other, the said recess bein of such size and so located as to receive a p uralityiof rolling elements at one time and to retainthem out of effective engagement with the other parts, sothat the normal rotational operation of the assembled bearing will not be impeded thereby.

4. In an anti-friction bearing, the combination of casing members and a, plurahty of series of rolling elements located therebetween, the said casing members being formed with a plurality of raceways for the respective series of rolhng elements and also with an interior recess adjoining and com: municating with one of the raceways, so that the rolling elements may be transferred from one to the other, the said recess being of such size and so located as to receive a plurality of rolling elements at one time; and to retain them' out of effective engage-' ment with the other parts, so that the normal rotational operation of the assembled- .65

hearing will not be impeded thereby.

5. In ananti-friction bearing, the .combi nation of casing members and rolling'ele;

ments located therebetween the said .casing members being formed with members-being formed with aninterior recess of such size and so located as to receiye a plurality of rolling elements at one time a raceway for the rolling elements, and one of the casing and to retain them out of efiective engagement with the other parts, so that the normal rotational operation of the assembled bearing will not. be impeded thereb%l.x 7

ed my In testimony whereof I have a signature in presence of two witnesses.

Witnesses:

Trmo. H. MCALLA, Nnr'rm L. Harm.

fiopiel of this patent may be obtained for five cents each, by addressing the Commissioner oi Patents,

Washington, D. 0.

HENRY HESS. 

